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Finding the Fourth Proportional to 19,179.98, 26,467.50 and 10,681.80

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Solution

The fourth proportional to 19,179.98, 26,467.50 and 10,681.80 is: 14,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,179.98 : 26,467.50 = 10,681.80 : x
  2. Step 2: Convert to fraction form
    19,179.98/26,467.50 = 10,681.80/x
  3. Step 3: Cross multiply
    19,179.98x = 26,467.50 × 10,681.80
  4. Step 4: Simplify right side
    19,179.98x = 282,720,541.50
  5. Step 5: Solve for x
    x = 282,720,541.50/19,179.98
  6. Step 6: Final answer
    x = 14,740.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.